Random fixes for mash bridge classes

mash/wm/bridge/wm_globals_mus.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MASH_WM_BRIDGE_WM_GLOBALS_MUS_H_
 #define MASH_WM_BRIDGE_WM_GLOBALS_MUS_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 56 matching lines @@
   void RemoveDisplayObserver(ash::wm::WmDisplayObserver* observer) override;
   void AddOverviewModeObserver(
       ash::wm::WmOverviewModeObserver* observer) override;
   void RemoveOverviewModeObserver(
       ash::wm::WmOverviewModeObserver* observer) override;
 
  private:
   // Returns true if |window| is a window that can have active children.
   static bool IsActivationParent(mus::Window* window);
 
+  void RemoveConnectionObserver();
+
   // mus::WindowTreeConnectionObserver:
   void OnWindowTreeFocusChanged(mus::Window* gained_focus,
                                 mus::Window* lost_focus) override;
+  void OnWillDestroyConnection(mus::WindowTreeConnection* connection) override;
 
   mus::WindowTreeConnection* connection_;
 
   std::vector<WmRootWindowControllerMus*> root_window_controllers_;
 
   base::ObserverList<ash::wm::WmActivationObserver> activation_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(WmGlobalsMus);
 };
 
 }  // namespace wm
 }  // namespace mash
 
 #endif  // MASH_WM_BRIDGE_WM_GLOBALS_MUS_H_